Answer:
x²-4x-3=0
Step-by-step explanation:
x²-(x+2)²+4=7
x²-(2x)²+4=7
x²-4x+4=7
x²-4x+4-7=7-7
x²-4x+4-7=0
Standard form → x²-4x-3=0
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Answer:
x²-4x-3=0
Step-by-step explanation:
x²-(x+2)²+4=7
x²-(2x)²+4=7
x²-4x+4=7
x²-4x+4-7=7-7
x²-4x+4-7=0
Standard form → x²-4x-3=0